This chemical is called (R)-4-Chlorostyrene oxide, and it can also be named as (2R)-2α-(4-Chlorophenyl)oxirane. With the molecular formula of C₈H₇ClO, its molecular weight is 154.59. The CAS registry number of this chemical is 21019-51-2. 

Physical properties about the (R)-4-Chlorostyrene oxide are: (1)ACD/LogP: 2.21 # of Rule of 5 Violations: 0; (2)#H bond acceptors: 1; (3)#H bond donors: 0; (4)#Freely Rotating Bonds: 1; (5)Polar Surface Area: 12.53 Å²; (6)Index of Refraction: 1.581; (7)Molar Refractivity: 40.16 cm³; (8)Molar Volume: 120.4 cm³; (9)Polarizability: 15.92×10^-24cm³; (10)Surface Tension: 46.2 dyne/cm; (11)Density: 1.283 g/cm³; (12)Flash Point: 98.1 °C; (13)Enthalpy of Vaporization: 44.81 kJ/mol; (14)Boiling Point: 230.4 °C at 760 mmHg; (15)Vapour Pressure: 0.0998 mmHg at 25°C. 

You can still convert the following datas into molecular structure:
1.SMILES: Clc1ccc(cc1)C2OC2
2.InChI: InChI=1/C8H7ClO/c9-7-3-1-6(2-4-7)8-5-10-8/h1-4,8H,5H2
3.InChIKey: IBWLXNDOMYKTAD-UHFFFAOYAE